224 x 10' is incorrect scientific notation, how should this be written in correct scientific notation?

2.24 x 10^3

Explanation:

When writing in scientific notation, you need to simplify the subject till there's only one digit on the left of the decimal point, so in this problem you had to move the decimal point over two more places.

It has already been moved once, shown by the 10^1, so you add 2 to the 10^1 to get 10^3.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa